A Study on the Total Tuning of Feed Drive Systems in NC Machine Tools (4th Report) -- Multiple Axes Tuning --
Yoshiaki Kakino, Atsushi Matsubara, Soichi Ibaraki (Kyoto University)
Hideo Nakagawa (OKK Corp.)
Torao Takeshita, Hisaichi Maruyama (Mitsubishi Electric Corp.)
Abstract
This paper deals with the total tuning method of NC feed drive systems for the aim of decreasing the contouring error in synchronous drive of multiple axes. The tuning process proposed in this paper is not an automatic process but a conversational process using JK-map. JK-map is a graphical human interface to show designers "where they are now" and "where they should go" on the evaluation of the machine performance. In the simulation case study, it is shown that the contouring error of a machining center is drastically reduced using the total tuning method.
Key Words: NC machine tools, feed drive system, tuning, servo stiffness, ballscrew, contouring error.
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